Ringon林贡
ringn.戒指;环;圈;拳击场;马戏场;帮派n.铃声;钟声;电话;口气v.包围;环绕;形成圈v.打电话;回响;鸣响;按铃;听上去
ring of integers整数环
ring at the door在门口按铃
ringing repeater振铃信号转发器
Ring rot disease轮纹病
ringspot viruses环斑病毒
ring plate hinge环形平板铰链
ring illuminator环形光源
ring colorimetry环圈比色法
ring translation环形变换器,环形译码器
ring replacement换环